-ic c-- ccc cci ccm cco ccs cct ccx ci- cic cii cim cio cis cit cix cmc cmi cmm cmo cms cmt cmx cmy co- coc coi com coo cos cot cox coy csc csi csm cso css cst csx csy ctc cti ctm cto cts ctt ctx cty cxc cxi cxo cxs cxt cxx cyc cym cyo cys cyt icc ici icm ico ics ict icy iic iii iim iio iis iit iix im- imc imi imm imo ims imt imx imy io- ioc ioi iom ioo ios iot is- isc isi ism iso iss ist isy itc iti itm ito its itt itx ity ixc ixi ixy iyc iym iyo iys iyt iyy m-o mc- mcc mci mcm mco mcs mct mcx mi- mic mii mim mio mis mit mix miy mmc mmi mmm mmo mms mmt mmx moc moi mom moo mos mot mox moy msc msi msm mso mss mst msx msy mtc mti mtm mto mts mtt mtx mxc mxi mxs my- myc mym myo mys myt myx o-i oc- occ oci ocm oco ocs oct ocx oic oii oim oio ois oit om- omc omi omm omo oms omt omx omy oo- ooc ooi oom ooo oos oot oox os- osc osi osm oso oss ost osx ot- otc oti otm oto ots ott ox- oxc oxi oxo oxt oxx oxy oyi oyo oys scc sci scm sco scs sct scx sic sii sim sio sis sit six smc smi smm smo sms smt smx smy soc soi som soo sos sot sox soy ss- ssc ssi ssm sso sss sst ssx stc sti stm sto sts stt stx sty sxc sxi sxm sxs sxt sy- syc syi sym sys syt syx t-x tcc tci tcm tco tcs tct tcx tic tii tim tio tis tit tix tiy tmc tmi tmm tmo tms tmt tmx tmy to- toc toi tom too tos tot tox toy tsc tsi tsm tso tss tst tsx tsy ttc tti ttm tto tts ttt ttx tty txi txs txt tyc tym tyo tys tyt xci xcx xic xii xio xis xit xix xmc xmi xmm xmo xms xmt xmx xoc xoi xom xoo xos xot xox xsc xsi xsm xss xst xtc xti xtm xts xtx xty xxi xxo xxx xxy xyy ycc yci yco ycs ycy yii yim yio yis yit ymc ymi ymm ymo yms ymt yoc yoi yom yoo yos yot yox yoy ysc ysi ysm yso yss yst ysy ytc ytm yto yts ytt yxy yyc yys yyt yyy